The first two counts of tampering with a consumer product stated that Harris allegedly committed the crimes "with reckless disregard for the risk that another person would be placed in danger of bodily injury, and under circumstances manifesting extreme indifference to such risk...."

If convicted, each of the tampering with a consumer product carries a potential sentence of up to 10 years of imprisonment. Each of the two counts of obtaining controlled substances by deceit or subterfuge carries a potential sentence of up to four years of imprisonment.

At a press conference on June 14, Smith said hospital pharmacy staff on June 2 discovered irregularities in the access of Dilaudid during a routine review of the hospital's automated medication dispensing system. The pharmacy staff found patients who were given Dilaudid may not have received the medication as prescribed.

Hertz told K2 Radio that Harris, who was a registered nurse at the hospital for about seven years, would draw hydromorphone from vials, refilling them with saline. The vials were then distributed to different departments.

"That has complicated the search for which patients were impacted," Hertz said in June. The number of patients affected and the amount of hydromorphone taken by Harris remained unclear, he said.

Harris was personally using the drug, Hertz said. Harris reportedly received hydromorphone while he was a patient at the hospital, which led to what hospital officials said became an addiction.

Harris also tampered with containers of the painkillers Demerol and fentanyl, but Harris' use of those drugs was minimal compared with his use of hydromorphone, Hertz said.

Hertz says Harris admitted to stealing the hydromorphone and has been cooperative ever since. He was immediately suspended.

Any patients who received Dilaudid during that period can call 307-358-7345 to reach a dedicated phone line where hospital staff will answer any questions.